The study proposed here builds on recent work by one of the researchers who has been exploring demographic (5), clinical (e.g. 6) and most uniquely genetic (e.g. 7); and epigenetic (e.g. 8) predictors of psychological treatment response (coining the term Therapygenetics, see, 7). While these predictors are individually only likely to explain a small proportion of the variance of treatment outcome, understanding these multiple risks and their interaction is the best way to consider this issue. The study addressed here is a pilot study, necessary to demonstrate feasibility of utilising a sleep intervention application in an unselected sample of young adults, prior to applying for grant funding to undertake a larger but similar behavioural genetics study in the future.